NB Bancorp, Inc.

We conduct our business through our main office located in Needham, Massachusetts and our branch offices located in Amesbury, Ashland, Boston (Mission Hill), Dedham, Dover, Medfield, Medford, Millis, Natick, Newburyport, Wellesley and Westwood, Massachusetts; Bedford, Exeter, Portsmouth and Seabrook, New Hampshire; and a warehouse lending center in Ponte Vedra Beach, Florida. Additionally, we have two administrative offices in Needham, Massachusetts and one in Wellesley, Massachusetts. We own six of our branch offices, including our main office, and our two administrative offices in Needham, Massachusetts and we lease ten of our branch offices and our administrative office in Wellesley, Massachusetts. The Company acquired three owned and four leased branch locations in the Provident Acquisition totaling $11.2 million in land, buildings, leasehold improvements, furniture, fixtures and equipment at fair value. At December 31, 2025, the total net book value of our land, buildings, leasehold improvements, furniture, fixtures and equipment was $46.2 million.